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Liquid crystal display device with built-in touch device

A liquid crystal display device, touch technology, applied in the input/output process of data processing, optics, instruments, etc., can solve the problems of complex control circuit, low pixel aperture ratio, and limited application product size.

Active Publication Date: 2013-03-06
NANJING CEC PANDA LCD TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing implementations of resistive In-Cell touch technology shown in Figure 2(a) and Figure 2(b) have the following disadvantages: low pixel aperture ratio, limited application product size, complex control circuits and patent restrictions
[0008] The control circuit is complicated because it needs independent driving circuit and scanning circuit; the circuit principle is similar to Stantum digital resistive touch technology, and the control circuit is protected by Chinese patent CN100447723C

Method used

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  • Liquid crystal display device with built-in touch device

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0025] Figure 3(a) and Figure 3(b) are schematic diagrams of the liquid crystal display device with built-in touch control of the present invention, as shown in Figure 3(a), the liquid crystal display device includes a first substrate 1 opposite to the first substrate 1 The second substrate 2, the liquid crystal 3 sandwiched between the first substrate 1 and the second substrate 2, and the withstand voltage PS 4 and the conductive PS 6 are arranged on the second substrate...

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Abstract

The invention provides a liquid crystal display device with a built-in touch device. The liquid crystal display device comprises a first substrate, a second substrate and a liquid crystal layer, wherein the first substrate is provided with a scanning line, a data line and a plurality of pixel units; each pixel unit comprises three pixel subunits; each pixel subunit is provided with a film crystal switch and a pixel electrode; the second substrate is provided with a conductive PS; one pixel subunit is internally provided with a microswitch, a Y-sensor line which is parallel to the data line and is positioned in the same layer together with the data line, and a conductive PAD; the microswitch comprises a grid electrode connected with the scanning line, a source electrode connected with the Y-sensor line and a drain electrode connected with the conductive PAD; and the conductive PAD is opposite to the conductive PS. According to the liquid crystal display device provided by the invention, an existing press resistance-type built-in touch device is improved, defects of such devices at present are overcome, the aperture opening ratio of pixels is improved, a press resistance-type built-in touch technology can be applied to large-size panels, and the driving circuit of the touch device is simplified.

Description

technical field [0001] The invention relates to a liquid crystal display device with built-in touch control. Background technique [0002] The development direction of touch technology is low cost, high yield, large size, high reliability and so on. In order to achieve this goal, in terms of process technology, ITO Sensor, Cover lens and even TFT can be integrated together to reduce production costs, make the thickness thinner, and avoid the problem of poor bonding. In terms of material technology, organic or inorganic alternative materials for ITO can be developed, flexible film and substrate technology can be mastered, or new plastic materials can be used on Cover Lens materials to replace more expensive reinforced glass or PMMA plastic plates. In terms of structure technology, built-in touch structures such as On-Cell and In-Cell have been developed. [0003] The In-Cell structure has high integration and low pass rate, and the overall thickness of the touch device is t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1362G02F1/1368G02F1/1333G06F3/045
Inventor 马群刚
Owner NANJING CEC PANDA LCD TECH
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